Re: (ITS#5576) Missing attribute type 'managedInfo' referenced with SUP

[hyc@symas.com]

ando@sys-net.it wrote:
> h.b.furuseth@usit.uio.no wrote:
>> michael@stroeder.com writes:
>>> The following attribute type declaration references 'managedInfo'
>>> which is not declared:
>>>
>>> ( 1.3.6.1.4.1.4203.666.1.55.0.1.2.1 NAME 'olmDbURIList' DESC 'List of URIs a
>>> proxy is serving; can be modified run-time' SUP managedInfo )
>> Please mention where the code is which you refer to.
>>
>> Anyway, this is in back-ldap/monitor.c and managedInfo *is* declared -
>> in back-monitor/init.c.  Have you observed a failure, e.g. with
>> back-ldap and ./configure --disable-monitor?
>
> I suspect something like: if back-monitor and/or back-ldap are built as
> modules, and loaded in the wrong order (back-ldap first, back_monitor
> then), 'olmDbURIList' is likely to be registered __before__
> 'managedInfo'.  I don't see a quick fix (or anything but requiring
> loading the modules in the right order) to this issue.  In fact, the
> only "clean" solution would be for back-ldap to register a function that
> is executed when back-monitor is loaded, in order to register dependent
> schema items and enable the monitoring feature it implements.  The
> safest thing to do right now is condition the registration of
> 'olmDbURIList' to the existence of 'managedInfo', conditioning the
> availability of the monitoring feature to loading the modules in the
> right order.  Of course this ought to be documented somewhere.  Note
> that probably similar issues exist in back-bdb's specific monitoring
> features.  The fact that I seldom develop while building backends and
> overlays as modules might have an impact on this type of issues, though.

We already solved this dependency in back-ldap and back-bdb - their 
monitor_init() functions will return without doing anything if 
backend_info("monitor") fails. As such, these schema items will only be 
registered if back-monitor has already beeen loaded. There's no issue here.

-- 
   -- Howard Chu
   CTO, Symas Corp.           http://www.symas.com
   Director, Highland Sun     http://highlandsun.com/hyc/
   Chief Architect, OpenLDAP  http://www.openldap.org/project/